It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 708 328 is not a prime number.
For example, 708 328 can be divided by 2: 708 328 / 2 = 354 164.
For 708 328 to be a prime number, it would have been required that 708 328 has only two divisors, i.e., itself and 1.
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708 328 is an even number, because it is evenly divisible by 2: 708 328 / 2 = 354 164.
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A number is a perfect square (or a square number) if its square root is an integer; that is to say, it is the product of an integer with itself. Here, the square root of 708 328 is about 841.622.
Thus, the square root of 708 328 is not an integer, and therefore 708 328 is not a square number.
The square of a number (here 708 328) is the result of the product of this number (708 328) by itself (i.e., 708 328 × 708 328); the square of 708 328 is sometimes called "raising 708 328 to the power 2", or "708 328 squared".
The square of 708 328 is 501 728 555 584 because 708 328 × 708 328 = 708 3282 = 501 728 555 584.
As a consequence, 708 328 is the square root of 501 728 555 584.
The multiples of 708 328 are all integers evenly divisible by 708 328, that is all numbers such that the remainder of the division by 708 328 is zero. There are infinitely many multiples of 708 328. The smallest multiples of 708 328 are: